javax.comm

CommPortIdentifier.getPortIdentifiers is empty

纵然是瞬间 提交于 2019-11-29 14:08:49
I am building a simple application that communicates through Serial Port using the Java Communication API javax.comm. Here is some code in my java main method I wrote: CommPortIdentifier cpi = null; Enumeration e = CommPortIdentifier.getPortIdentifiers(); while (e.hasMoreElements()) { try { cpi = (CommPortIdentifier) e.nextElement(); } catch (NoSuchElementException n) { } System.out.println(cpi.getName()); } Enumeration e is always empty even though I am connected to a COM 4 port when running this. also, running this code: portRead = CommPortIdentifier.getPortIdentifier("COM8"); cause the

add javax.comm API on a mac

六月ゝ 毕业季﹏ 提交于 2019-11-29 13:08:32
I would like make an java app that communicates with a serial device(handheld scanner) so that the app is platform independent. I have found a few code examples, and when I copy them into Eclipse it says that javax.comm.* is missing. How do I install this on my Mac? And how do I add this library to my app so that the users does not have to install anything? I want to able to give the users a jar file and the device, and they should be able to run it on windows/Mac/Linux without little or none configuration. I found a download where I could download a javax.comm.jar file but the download

How to read and write data to COM/Serial ports in Android?

▼魔方 西西 提交于 2019-11-28 20:50:53
I have to read and write data to the COM ports of the device using android, I am using javax.comm package for that but when I installed the apk file, it is not displaying any ports of the device so is there any permission which I need to add in the manifest file? Your problem is one with operating systems. Android runs Linux under the hood , and Linux treats serial ports differently than Windows does. javax.comm also contains win32com.dll , a driver file , which you won't be able to install on an Android device. If you do find a way to achieve what you're trying to do, you can't actually look

Javax.comm API on 64-bit Windows

 ̄綄美尐妖づ 提交于 2019-11-27 13:38:24
I am using the javax.comm API to help my program communicate with hardware over serial port. I am using the Windows 7 and NetBeans IDE 9. I used the common Java program to check the available ports on my PC. The program compiled and ran without error. However it returned nothing. What can I do to use the javax.comm API on Windows? It seems win32com.dll does not work with a 64-bit operating system. This is how I got it to work. I've tested it using JDK 1.6 (32bit) on my Windows 7 64bit machine. Install 32bit JDK. Copy 'win32com.dll' to JDK_HOME\jre\bin. Copy 'javax.comm.properties'to to JDK

How to get javax.comm API?

吃可爱长大的小学妹 提交于 2019-11-26 17:48:15
I'd recently downloaded a project on SMS sending, but when I tries to compile the code it gives error on line import javax.comm.*; . Can anybody tell me where to find javax.comm and where to place so that there will be no compilation error. Ryan Schipper Oracle Java Communications API Reference - http://www.oracle.com/technetwork/java/index-jsp-141752.html Official 3.0 Download (Solarix, Linux) - http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-misc-419423.html Unofficial 2.0 Download (All): http://www.java2s.com/Code/Jar/c/Downloadcomm20jar.htm Unofficial

Javax.comm API on 64-bit Windows

别来无恙 提交于 2019-11-26 16:29:00
问题 I am using the javax.comm API to help my program communicate with hardware over serial port. I am using the Windows 7 and NetBeans IDE 9. I used the common Java program to check the available ports on my PC. The program compiled and ran without error. However it returned nothing. What can I do to use the javax.comm API on Windows? It seems win32com.dll does not work with a 64-bit operating system. 回答1: This is how I got it to work. I've tested it using JDK 1.6 (32bit) on my Windows 7 64bit

How to get javax.comm API?

[亡魂溺海] 提交于 2019-11-26 05:37:18
问题 I\'d recently downloaded a project on SMS sending, but when I tries to compile the code it gives error on line import javax.comm.*; . Can anybody tell me where to find javax.comm and where to place so that there will be no compilation error. 回答1: Oracle Java Communications API Reference - http://www.oracle.com/technetwork/java/index-jsp-141752.html Official 3.0 Download (Solarix, Linux) - http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-misc-419423.html